Hoang Minh Nguyen
Excel & CSV Data Cleaning Specialist
New to Contra
Hoang Minh is ready for their next project!
CSV Cleanup & Missing Value Review
Sample demonstration project showing how I clean and review CSV data with missing, incomplete, or inconsistent values. I organized the dataset, corrected safe formatting issues, identified missing fields, and flagged uncertain records for manual review instead of guessing or overwriting source data. The original file was preserved and all changes were made on a separate working copy to maintain traceability and data integrity.
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Date, Number & Text Standardization
Sample demonstration project showing how I standardize inconsistent dates, numbers, text, and field formats in Excel or CSV files. I corrected inconsistent date formats, normalized numeric values, standardized text capitalization and spacing, and organized fields for consistent downstream use. Unclear values were flagged for review instead of being guessed or overwritten. The original source data was preserved and all changes were made on a separate working copy.
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Duplicate Removal & Data Standardization
Sample demonstration project focused on identifying duplicate records and standardizing inconsistent Excel data. I reviewed repeated entries, standardized names, dates, phone numbers, and numeric formats, and flagged uncertain records for manual review instead of deleting them automatically. The original source data was preserved and all changes were made on a separate working copy.
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Excel Data Cleaning – Before & After
Sample demonstration project showing how I clean and standardize messy Excel and CSV data. I corrected inconsistent formats, standardized dates, numbers, and text, removed duplicates, organized rows and columns, and flagged unclear values for review. The original source file was preserved and all work was performed on a separate copy.
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